If I were in your shoes, I'd be buying this Fabspeed setup from Suncoast. Looks to be a very good deal!
http://e-partssales.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=P&Product_Code=evoe&Category_Code=986exhaust
You'll get new cats AND a free flow, single chamber muffler.
No idea if it resonates between 2-3k though.